Colorado Academic Standards for Mathematics (2020)
8.EE.B.6
092d834a-6754-5b86-9b4b-5a8742eb93d4 AF.2 c7f49d4b-d0bc-4b86-a329-ca359c9afdb9 8.EE.B 8.EE.B.6
Use similar triangles to explain why the slope m is the same between any two distinct points on a non-vertical line in the coordinate plane; derive the equation y = mx for a line through the origin and the equation y = mx + b for a line intercepting the vertical axis at b.
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